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Acer Chromebook C934, Lifecycle Extension Manual, Page: 30 / 40

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Acer Chromebook C934 Lifecycle Extension Manual Download Page 30

1-28

Disassembly Procedures

Top Assembly Removal (Keyboard Removal)

0

Prerequisite: 

Ensure that the Speakers, Touchpad Module, G-Sensor Board, USB Board, 
Mainboard, and LCD Module have been disassembled prior removing the 
top assembly.

NOTE:

NOTE

:

The keyboard is included as part of the top assembly and can not be disassembled. 
In the event that the keyboard is damaged, replace the entire top assembly.

Figure 1-40. Top Assembly (Keyboard)

Summary of Contents for Chromebook C934

Page 1: ...Acer Chromebook C934 C934T CB314 3H CB314 3HT LIFECYCLE EXTENSION GUIDE ...

Page 2: ...i Self Repair 1 1 Disassembly Procedures 1 2 Troubleshooting 1 29 FRU Field Replaceable Unit List 1 33 Exploded Diagrams 1 34 Check for updates yourself 1 37 Factory reset your Chromebook 1 38 ...

Page 3: ...TE For replacement parts always use only Acer certified components in order to safeguard quality optimum system performance stability and reliability of the product NOTE NOTE Any damage to the product that occur during self repair or which has occurred as a result of a careless or unsuccessful self repair attempt is not covered by the standard product warranty Software Recovery 0 This product has ...

Page 4: ...wrist grounding strap or by periodically touching an unpainted metal surface at the same time as touching a connector on the back of the computer Take off any metal objects on your arms or fingers such as bracelets rings or watches and make sure your hands are completely dry Even if your unit is unplugged there may still be some remaining electric charge If a component does not come out easily do ...

Page 5: ...Disassembly Procedures 1 3 WEEE Annex VII Component 0 These components are classified as requiring selective treatment Battery pack Touchpad module USB board Mainboard LCD panel ...

Page 6: ...work surface 2 Remove the power adapter from the USB Type C port A or B as shown in Figure 1 1 or Figure 1 2 Figure 1 1 AC Adapter Outlet 3 Remove all cables from system 4 Remove the microSD card from the microSD card slot C Figure 1 2 Figure 1 2 AC Adapter Outlet and MicroSD Card Removal NOTE NOTE Make sure the system is completely powered off A B C ...

Page 7: ...ver Removal 0 1 Remove ten 10 screws from the base cover Figure 1 3 Figure 1 3 Base Cover Removal 2 Carefully pry up the base cover starting from the upper edge to release the latches as shown in Figure 1 4 Figure 1 4 Base Cover Removal ...

Page 8: ...6 Disassembly Procedures 3 Continue to release the remaining latches on the upper left right and bottom sides Then grasp and remove the base cover from the system Figure 1 5 Figure 1 5 Base Cover Removal ...

Page 9: ...al 1 Find the battery pack A on the top assembly Figure 1 6 2 Detach the insulator mylar B and the tape C securing the cables Figure 1 6 Figure 1 6 Battery Pack Removal 3 Disconnect the battery cable D from the mainboard connector Figure 1 7 Figure 1 7 Battery Pack Removal A B C D ...

Page 10: ...isassembly Procedures 4 Remove the battery pack from the top assembly Figure 1 8 Figure 1 8 Battery Pack Removal IMPORTANT Follow local regulations for battery disposal WEEE Annex VII Component Battery Pack ...

Page 11: ...1 Detach the adhesive tape A securing the cable connection Figure 1 9 Figure 1 9 Touchpad Module Removal 2 Disconnect the touchpad FFC B from the touchpad module and mainboard connectors Then remove the touchpad FFC from the top assembly Figure 1 10 Figure 1 10 Touchpad Module Removal A B ...

Page 12: ...odule connector and the mainboard connector are locked 3 Lift slightly the keyboard FPC C Then detach the conductive tape C from the touchpad module and top assembly Figure 1 11 Figure 1 11 Touchpad Module Removal 4 Remove three 3 screws securing the touchpad module Figure 1 12 Figure 1 12 Touchpad Module Removal C D ...

Page 13: ...release them from the top assembly Figure 1 13 6 Slide the touchpad module slightly to disengage it from the bottom latches F and then remove the touchpad module G from the top assembly Figure 1 13 Figure 1 13 Touchpad Module Removal G H WEEE Annex VII Component Touchpad Module E E E H ...

Page 14: ...ard Removal 0 Prerequisite Battery Pack Removal 1 Remove three 3 screws A securing the right LCD hinge Figure 1 14 Figure 1 14 USB Board Removal 2 Lift the top assembly until it is fully open Figure 1 15 Figure 1 15 USB Board Removal A ...

Page 15: ...ector B and the USB board connector C Then remove the 20 pin USB board FFC Figure 1 17 5 Disconnect the 50 pin USB board FFC from the mainboard connector D and the USB board connector E Then remove the 50 pin USB board FFC Figure 1 17 6 Disconnect the G sensor board FFC from the USB board connector F Figure 1 17 7 Remove one 1 screw G securing the USB board Figure 1 17 Figure 1 17 USB Board Remova...

Page 16: ...FFC can be damaged if removed while the mainboard connector and the USB board connector are locked 8 Release the USB board H from the USB ports slots and guide pin I on the top assembly Then remove the USB board Figure 1 18 Figure 1 18 USB Board Removal WEEE Annex VII Component USB Board I H ...

Page 17: ...oard Removal 0 Prerequisite Battery Pack Removal 1 Remove three 3 screws A securing the left LCD hinge Figure 1 19 Figure 1 19 Mainboard Removal 2 Lift the top assembly until it is fully open Figure 1 20 Figure 1 20 Mainboard Removal A ...

Page 18: ...t the 50 pin USB board FFC from the mainboard connector C Figure 1 22 6 Disconnect the touchpad FFC from the mainboard connector D Figure 1 22 7 Disconnect the keyboard FPC from the mainboard connector E Figure 1 22 8 Disconnect the WLAN antennas cables from the WLAN module connectors F Figure 1 22 9 Disconnect the speaker cable from the mainboard connector G Figure 1 22 10 Disconnect the eDP cabl...

Page 19: ...Circuit can be damaged if removed while the mainboard connector is locked 12 Release the mainboard J from the I O ports slots and guide pins K on the top assembly Then remove the mainboard Figure 1 23 Figure 1 23 Mainboard Removal CAUTION Make sure all cables FFCs and FPC are disconnected from the connectors on the mainboard to avoid damage during removal E D B C F G H I WEEE Annex VII Component M...

Page 20: ...assembly Procedures Figure 1 24 Mainboard IMPORTANT Circuit boards 10 cm have been highlighted with a yellow rectangle as shown in Figure 1 24 Remove the circuit board and follow local regulations for disposal ...

Page 21: ...D Module Removal 0 Prerequisite Battery Pack Removal 1 Remove six 6 screws securing the LCD hinges Figure 1 25 Figure 1 25 LCD Module Removal 2 Lift the top assembly until it is fully open Figure 1 26 Figure 1 26 LCD Module Removal ...

Page 22: ... the 20 pin USB board FFC A from the mainboard and USB board connectors Figure 1 28 5 Disconnect the 50 pin USB board FFC B from the mainboard and USB board connectors Figure 1 28 6 Disconnect the touchpad FFC from the mainboard connector C Figure 1 28 7 Disconnect the keyboard FPC from the mainboard connector D Figure 1 28 Figure 1 28 LCD Module Removal A B C D ...

Page 23: ...tor are locked 8 Detach the tape E securing the cables Figure 1 29 Figure 1 29 LCD Module Removal 9 Disconnect the eDP cable from the mainboard connector F Then unroute the cable from the cable guides as shown in Figure 1 30 10 Disconnect the WLAN antennas cables from the WLAN module connectors G Then unroute the cables from the cable guides as shown in Figure 1 30 Figure 1 30 LCD Module Removal E...

Page 24: ...dures 11 Open the top assembly again Then remove the LCD module away from the top assembly Figure 1 31 CAUTION Make sure all cables are moved away from the device to avoid damage during removal Figure 1 31 LCD Module Removal ...

Page 25: ...Removal 0 Prerequisite LCD Module Removal 1 Pry the LCD bezel from the upper side to release the latches Figure 1 32 Figure 1 32 LCD Bezel Removal 2 Continue prying along the right side of the bezel Figure 1 33 Figure 1 33 LCD Bezel Removal ...

Page 26: ...rying along the left side of the bezel Figure 1 34 Figure 1 34 LCD Bezel Removal 4 Continue prying along the bottom side of the bezel until all the latches have been released Figure 1 35 Then remove the LCD bezel Figure 1 35 LCD Bezel Removal ...

Page 27: ...sided mounting tape A underneath the LCD panel B and the LCD hinge Then pull to detach the double sided mounting tape Repeat the same procedure to remove the double sided mounting tape on another side of the LCD panel and the LCD hinge Figure 1 36 Figure 1 36 LCD Panel Removal B WEEE Annex VII Component LCD Panel A ...

Page 28: ...ver so that the display panel is facing down on a flat surface Then detach the mylar tape C securing the eDP cable to the LCD panel Figure 1 37 Figure 1 37 LCD Panel Removal 3 Lift the latch D securing the eDP cable Figure 1 38 Figure 1 38 LCD Panel Removal C D ...

Page 29: ...Disassembly Procedures 1 27 4 Disconnect the eDP cable from the LCD panel connector E Figure 1 39 Then remove the LCD panel Figure 1 39 LCD Panel Removal E ...

Page 30: ...ad Module G Sensor Board USB Board Mainboard and LCD Module have been disassembled prior removing the top assembly NOTE NOTE The keyboard is included as part of the top assembly and can not be disassembled In the event that the keyboard is damaged replace the entire top assembly Figure 1 40 Top Assembly Keyboard ...

Page 31: ...more help contact Google support When to recover 0 You might want to recover if You see this error message Chrome OS is missing or damaged You ve tried other troubleshooting steps and nothing has fixed your issue You ve asked the experts in our help forum for help fixing your issue and they recommend recovery What you need to get started 0 The Chromebook with the Chrome OS is missing or damaged er...

Page 32: ...d this number look at the bottom of the error message on your Chromebook screen 5 Click Continue 6 Insert your USB flash drive or SD card into the computer 7 In the dropdown menu choose the USB flash drive or SD card you inserted 8 Click Continue 9 Click Create now 10 When you see a message saying that your recovery media is ready remove the USB flash drive or SD card from the computer Step 3 Ente...

Page 33: ...erase the recovery media if you want to reuse your USB flash drive or SD card to store other files To erase the recovery media 1 On your computer open Chrome 2 At the top right click Extensions 3 To launch the extension popup click on the Chromebook Recovery Utility extension 4 In the extension popup click Settings 5 Click Erase recovery media 6 From the dropdown menu select the USB drive or SD ca...

Page 34: ...e working properly 1 Erase the storage device then try recovery again 2 Try using a different USB flash drive or SD card to recover Some USB flash drives and SD cards don t work well with recovery If you re still having problems contact your Chromebook manufacturer for help Learn how to contact your manufacturer The security module on this device is not working First ask our experts for help If yo...

Page 35: ...FRU Field Replaceable Unit List 1 33 FRU Field Replaceable Unit List Please contact your local service center to find out how to obtain the part or replace your device ...

Page 36: ...ms Figure 1 41 System Exploded Diagram Table 1 1 System Exploded Diagram No Description 1 Top Assembly 2 Touchpad Module 3 G Sensor Board 4 G Sensor Board FFC 5 USB Board FFC 20 pin 6 USB Board FFC 50 pin 2 8 9 11 12 14 15 1 3 4 5 6 7 10 13 ...

Page 37: ...ed Diagrams 1 35 7 USB Board 8 Mainboard 9 Acetate Tape 10 Insulator Mylar 11 Touchpad FFC 12 Adhesive Tape 13 Speakers 14 Battery Pack 15 Base Cover Table 1 1 System Exploded Diagram Continued No Description ...

Page 38: ...LCD Assembly Exploded Diagram Table 1 2 LCD Assembly Exploded Diagram No Description 1 LCD Bezel 2 Camera Module 3 Microphone Rubbers 4 LCD Panel 5 LCD Hinge L LCD Hinge R 6 LCD Cover 7 eDP Cable 8 WLAN Antenna MAIN AUX 3 5 6 8 2 5 7 4 1 ...

Page 39: ...t the bottom right select the time 4 Select Settings 5 At the bottom of the left panel select About Chrome OS 6 Under Google Chrome OS you ll find which version of the Chrome operating system your Chromebook uses 7 Select Check for updates 8 If your Chromebook finds a software update it will start to download automatically ...

Page 40: ...our Chromebook 2 Press and hold Ctrl Alt Shift r 3 Select Restart 4 In the box that appears select Powerwash Continue 5 Follow the steps that appear and sign in with your Google Account NOTE NOTE The account you sign in with after you reset your Chromebook will be the owner account ...

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